Exchange program strengthens bonds between NATO allies
Capt. David Martinez Guillen, a Spanish Air Force pilot attached to the 16th Airlift Squadron at Joint Base Charleston, S.C., poses in front of a C-17 Globemaster III Jan. 25, 2018. U.S. Air Force active duty officers have the opportunity to work alongside international air forces through the Military Personnel Exchange Program. MPEP is a special duty assignment intended to build, sustain and expand international relationships. Martinez Guillen is the first Spanish pilot to take part in the MPEP. (U.S. Air Force photo by Airman 1st Class Allison Payne)